Prohibition of technical measures

The prohibition of technical measures relates primarily to DRM technologies (Digital rights management). DRM technologies restrict the use of a work, e.g. the distribution of a CD with copy protection that negates the right of reproduction, the right to distribute and...

No reversion

Once a work is distributed under a CC licence, this can practically no longer be reversed. In legal terms, all licence agreements would have to be cancelled with the consent of every person who has received a copy. The very task of finding everyone who owns a copy –...